X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e7c0c67af63b3979a597a66e5e1c8b0435fc6e19..cd9affe6152d6bbec19a72ea6fe26ab9407b51b7:/src/smpi/colls/allgather-2dmesh.c

diff --git a/src/smpi/colls/allgather-2dmesh.c b/src/smpi/colls/allgather-2dmesh.c
index 91c9cfbcb8..6bec72d967 100644
--- a/src/smpi/colls/allgather-2dmesh.c
+++ b/src/smpi/colls/allgather-2dmesh.c
@@ -1,3 +1,9 @@
+/* Copyright (c) 2013-2014. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
 #include "colls_private.h"
 
 /*****************************************************************************
@@ -110,9 +116,7 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
   int i, src, dst, rank, num_procs;
   int X, Y, send_offset, recv_offset;
   int my_row_base, my_col_base, src_row_base, block_size, num_reqs;
-  int success = 0;
-  int failure = 1;
-  int tag = 1;
+  int tag = COLL_TAG_ALLGATHER;
 
   rank = smpi_comm_rank(comm);
   num_procs = smpi_comm_size(comm);
@@ -121,7 +125,9 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
 
   block_size = extent * send_count;
 
-  is_2dmesh(num_procs, &X, &Y);
+  if (!is_2dmesh(num_procs, &X, &Y))
+    THROWF(arg_error,0, "allgather_2dmesh algorithm can't be used with this number of processes! ");
+
   my_row_base = (rank / Y) * Y;
   my_col_base = rank % Y;
 
@@ -135,7 +141,7 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
 
   // do local allgather/local copy 
   recv_offset = rank * block_size;
-  MPIR_Localcopy(send_buff, send_count, send_type, (char *)recv_buff + recv_offset,
+  smpi_datatype_copy(send_buff, send_count, send_type, (char *)recv_buff + recv_offset,
                  recv_count, recv_type);
 
   // do row-wise comm
@@ -144,8 +150,8 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
     if (src == rank)
       continue;
     recv_offset = src * block_size;
-    MPIC_Irecv((char *)recv_buff + recv_offset, recv_count, recv_type, src, tag,
-               comm, req_ptr++);
+    *(req_ptr++) = smpi_mpi_irecv((char *)recv_buff + recv_offset, recv_count, recv_type, src, tag,
+               comm);
   }
 
 
@@ -153,7 +159,7 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
     dst = i + my_row_base;
     if (dst == rank)
       continue;
-    MPIC_Send(send_buff, send_count, send_type, dst, tag, comm);
+    smpi_mpi_send(send_buff, send_count, send_type, dst, tag, comm);
   }
 
   smpi_mpi_waitall(Y - 1, req, MPI_STATUSES_IGNORE);
@@ -167,8 +173,8 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
       continue;
     src_row_base = (src / Y) * Y;
     recv_offset = src_row_base * block_size;
-    MPIC_Irecv((char *)recv_buff + recv_offset, recv_count * Y, recv_type, src, tag,
-               comm, req_ptr++);
+    *(req_ptr++) = smpi_mpi_irecv((char *)recv_buff + recv_offset, recv_count * Y, recv_type, src, tag,
+               comm);
   }
 
   for (i = 0; i < X; i++) {
@@ -176,7 +182,7 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
     if (dst == rank)
       continue;
     send_offset = my_row_base * block_size;
-    MPIC_Send((char *)recv_buff + send_offset, send_count * Y, send_type, dst, tag,
+    smpi_mpi_send((char *)recv_buff + send_offset, send_count * Y, send_type, dst, tag,
               comm);
   }
 
@@ -184,5 +190,5 @@ smpi_coll_tuned_allgather_2dmesh(void *send_buff, int send_count, MPI_Datatype
 
   free(req);
 
-  return success;
+  return MPI_SUCCESS;
 }